baber/WOPTO huggingface dataset:
Patent GB-273982-A (GB)
Title: Improvements in or relating to shoring structures for mines
IPC: E21D11/00
Filed: 1927-01-29
Abstract: 273,982. Moll, W., and Moll, W., (trading as Moll S÷hne, F. W.). Jan. 29, 1927. Shoring.-Door-post timbering for mine galleries or headways is supported by a polygonal framework within the timbering or replaced by a polygonal structure of sectional iron stanchions with resilient packing disposed between caps on the ends of the members of each framework. The door-post frame 5, Fig. 1. is supported by an internal polygonal framework 16 with resilient packing 14, between the ends of the members, this packing being supported in open tubular members 12 having other open tubular members to grip the main timbers 16. The inner members abut on to the tubes 12 and cause compression of the tubular members of the packing. The tubular abutting portions may have flanges whereby they are secured to the main timbers or they may be integral with the ends of the abutting members. The main members may be replaced by sectionaliron stanchion members 24, Fig. 6, with resilient packing 14 between them. To allow the packing to be renewed or the framework removed an adjustable screw member 18 is clamped to two of the meeting members so that the distance between their ends may be temporarily adjusted. In a modification, removable ends 30 are provided in the side members to support the roof member and resilient packing 14<b> abutting against stops 32 on the roof member is used between the heads of the side members and the roof member.
Patent GB-923448-A (GB)
Title: Improvements in and relating to aliphatic phosphate esters
IPC: C07F9/09
Filed: 1961-01-24
Abstract: A process for the preparation of aliphatic phosphate esters comprises reacting an aliphatic alcohol containing 1 to 18 carbon atoms in the molecule with an alkali metal hydroxide while concurrently removing substantially all of the water formed in said reaction by azeotropic distillation, reacting the substantially anhydrous reaction mixture containing an alkali metal alcoholate so obtained with phosphorus oxychloride at a temperature in the range 0 to 100 DEG C. and separating the phosphate ester of the alcohol from the reaction mixture so obtained, the amount of alcohol reacted with the alkali metal hydroxide being at least 6 mols per mol of phosphorus oxychloride reacted with the reaction mixture containing the alkali metal alcoholate and the process, at least up to the separation of the phosphate ester, being conducted in a non-oxidising atmosphere. Preferred alcohols have the formula R1R2R3C-OH where R1, R2 and R3\t are hydrogen, alkyl, alkenyl or alkoxyalkyl having collectively 1 to 17 carbon atoms.  Mixed esters may be prepared.  A hydrocarbon azeotroping agent is preferably used and finely divided iron is preferably present. The ester may be isolated by adding water to the reaction mixture, separating the organic layer and distilling it. Examples describe the preparation of tri-i-propyl, tri-n-butyl, tri-s-butyl, triamyl, tris(2-ethylhexyl), tri-n-dodecyl, triallyl and tris(butoxyethyl) phosphates and of mixed butoxyethyl/n-butyl and butoxyethyl/methoxy-ethyl phosphates.
Patent GB-543139-A (GB)
Title: Improvements in the manufacture of rubber
IPC: C08K5/32
Filed: 1941-02-28
Abstract: 543,139. Rubber compositions. UNITED STATES RUBBER CO. Feb. 28, 1941, No. 2713. Convention date, April 9, 1940. [Class 70] A quinone oxime compound, e.g. 0.05 to 2.0 per cent. of including the group -O-N =A where in A is any quinonoid nucleus, preferably of the form Y-O-N =A =R wherein Y is hydrogen, a hydrocarbon group a heterocyclic group, an acidyl group, a metal, or an ammonium group, and R is =N-O-Y or oxygen, sulphur, or an imide group, e.g. quinone monoxime, p-quinone dioxime, p-nitroso-diphenylamine, nitrosothymol, dinitrosothymol, 2-chloro-quinone dioxime dichloro-quinone dioxime, o-quinone dioxime, naphtho-quinone dioxime, the diacetate, dimethyl ether, or lead salt of quinone dioxime, p-nitroso-N-methyl aniline, p-nitroso acetanilide, or N, N' bis-. (4-nitroso-phenyl) ethylene diamine, is added during or preceding heat treatment to rubber, caoutchouc, synthetic rubber &c. to which is added before, during or after the addition of the quinone oxime compound a relatively large amount of rubber reinforcing black, e.g. 55 per cent. of carbon black, to reduce the time of heating to attain desired physical properties given to rubber with such additions of carbon black, the mix being heated to flocculate the carbon black and then masticated to disperse it. In an example smoked sheet, carbon black and pine tar were mixed with a mill roll temperature of 150‹ F. p-nitroso phenol was added, the mix milled for 10 mins. at 300‹ F., cooled, zinc soap, zinc oxide, accelerator, antioxidant and sulphur added and the mix vulcanized. The products are applicable for tyres, footwear soles, belting, tank linings &c.
Patent GB-739621-A (GB)
Title: Light projector
IPC: F21S8/00
Filed: 1954-01-29
Abstract: 739,621. Light projectors. GROBEL, G. F. M. Jan. 29, 1954 [Feb. 5, 1953], No. 2757/54. Classes 75 (3) and 75 (4). A light projector for illuminating a small area such as a part of the body being operated on, comprises a mirror 9, a bulb 12, a condenser lens system 10a, 10b, an objective lens in a holder 6 and means providing a forced circulation of air to cool the bulb, all being supported on a collar 2, and a diaphragm 16 supported on the holder 6 of the objective lens between the objective lens and the condenser lens system 10a, 10b. The cooling unit comprises a cylindrical openended housing 4 supported on three legs 3 extending inwardly and rearwardly from the collar 2 and containing a fan 15 and an electric motor 14. The mirror 9 is secured to the centre of a member 7 extending across the rear face of the collar and the condenser lens system 10a, 10b is secured in a central aperture in a partition 8 secured to the front face of the collar. The socket 13 for the bulb 12 is mounted on the collar. The objective lens holder 6 is supported on three legs 5 extending inwardly and forwardly from the collar. The collar is pivotally mounted upon a U-shaped cradle 19 on the end of a rod 21 rotatably received in the upper end of a vertical telescopic arm 22 mounted on a tripod provided with rollers. A handle 23 is detachably mounted on the end of a rod 24 extending from a bracket 25 secured to the collar 2. The projector casing 18 is egg-shaped and formed in two symmetrical halves secured to the collar. The front half has a central aperture receiving the objective lens and the rear half has vents 17. Vents are also formed in the collar. A three position switch is provided for energizing the cooling system alone, the bulb alone, or both together.
Patent GB-753735-A (GB)
Title: Process for the manufacture of n-alkyl anthranilic acid-sulphonic acids and of derivatives of these sulphonic acids
IPC: C07C311/37
Filed: 1954-01-29
Abstract: A process of manufacturing N-alkyl anthranilic acid-sulphonic acids and derivatives of these sulphonic acids of the general formula <FORM:0753735/IV(a)/1> wherein R is OH or the radical of an aminoalkyl-sulphonic acid the nitrogen atom of which is linked to the said SO2-group, comprises heating the dry acid alkali metal salts of compounds of the general formula <FORM:0753735/IV(a)/2> wherein R has the above meaning, with a water-free aliphatic or cycloaliphatic primary amine, in the presence of metallic copper or a copper salt. The halogen in the formula is preferably chlorine and the -SO2R group in the 5-position with respect to the -COOH group.  The products of the invention may be employed as stabilizers in preparing diazoamino compounds.  In examples: an acid sodium salt is obtained by heating anhydrous isopropylamine with the dried monosodium salt of 5-sulpho-2-chlorobenzoic acid in the presence of cuprous chloride in an autoclave, adding caustic soda solution to the product, removing excess amine and copper oxide and adding hydrochloric acid and sodium chloride to the residue (1); a disodium salt is obtained by salting out the product obtained in a similar process in which the dried monosodium salt of 2 - chlorobenzoic acid - 5 - sulpho - N - methyltauride is employed instead of that of 5-sulpho-2-chlorobenzoic acid (2); and a disodium salt is obtained in a similar process using anhydrous cyclohexylamine instead of isopropylamine (3).  The monosodium salt of 2 - chlorobenzoic - 5 - sulpho - N - methyltauride is obtained by adding hydrochloric acid and sodium chloride to a solution of the condensation product of 2-chlorobenzoic acid-5-sulphochloride and N-methyltaurine.  U.S.A. Specification 1,960,644 is referred to.
Patent GB-1437780-A (GB)
Title: Elevator system
IPC: B66B1/16
Filed: 1973-05-17
Abstract: 1437780 Distance dependent slowdown control WESTINGHOUSE ELECTRIC CORP 17 May 1973 [17 May 1972] 02850/76 Divided out of 1436742 Heading B8L An elevator system includes means providing a distance dependent speed pattern during slowdown; wherein, for distances, of a car from a landing at which a stop is to be made, exceeding a transfer distance, the speed pattern is proportional to the square root of the distance to go to the landing, and, at the transfer distance, control reverts to a distance dependent signal provided by circuit 554 Fig. 12 responsive to hatch transducer (56, 58), Fig. 1 (not shown) comprising transformer (58), and, for each landing, induction plate (56) and; wherein, for each deceleration, a calibration takes place ensuring that the speed pattern for distances exceeding the transfer distance attains the , value required to avoid jerk at the transfer distance. Reversible counter 544 is counted up during car acceleration, the counting, under control of pulses developed by optical or magnetic detector (30), Fig. 1 (not shown) cooperating with a perforated pulley (26) driven by the car; being stopped at attainment of maximum speed. During decleration, as the counter is counted down to binary twenty, its output, via d/a converter 960 controls circuit 964 whose analogue output, in view of multiplier 984 in the feedback of amplifier 982, is proportional to the square root of the count, leading to constant, distance dependent deceleration. A logic circuit ensures that d/a 960 receives the count twenty should the actual count fall below this. The deceleration signal is fed to output DSAN, whose lowest value is preset at point 1014, and communicated during acceleration to capacitor 1028, to be passed from there to terminal DSAN during distance dependent car deceleration to control the car at lower speeds, thus reducing accuracy requirements for the analogue circuit. Decleration characteristic is preset in unit 976, 1000. Attainment of the minimum output of counter 544 causes car control to switch over to hatch transducer circuit 554 Fig. 12, controlling the last part of car movement to a landing. Control of car speed profiling overall is performed by driver 552, see Fig. 21 (not shown), controlling analogue switches 548, 550, 556 and 560, the latter being switched discontinuously, or providing a blend of signals TRAN/DSAN; DSAN/HTAN during a switchover period. The Specification discloses a terminal slowdown device, described and claimed in Specification 1,436,741. Features of the floor selector disclosed herein are described and claimed in Specification 1,436,743. Means for providing a jerk controlled speed pattern signal during acceleration, and constant speed phases of car motion are described herein, and claimed in parent Specification 1,436,742.
Patent GB-434118-A (GB)
Title: Method of connections which effects a delayed release of station protective switches when a non-permissable voltage arises between neutral and earth
IPC: H02H3/14
Filed: 1934-01-29
Abstract: 434,118. Protective cut-out systems. SCHIELE & BRUCHSALER-INDUSTRIEWERKE AKT.-GES., Baden-Baden, Germany, and CRABTREE & CO., Ltd., J. A., Lincoln Works, Walsall. Jan. 29, 1934, No. 2922. Convention date, Jan. 27, 1933. [Class 38 (v)] Automatic circuitbreakers; electromagnetic switches.-An arrangement for releasing a station protection switch automatically on the occurrence of an excess p.d. between earth 2 and the neutral O of a polyphase system R, S, T, O, as for example when it is crossed by an h.t. line, comprises a spiral spring 3 connected to O and arranged to act on an oscillatory body 4 having a contactcarrying arm 5. The time-relay 1 is normally connected between O, 2 by means of closed contacts on its armature and the arm 5. When excess p.d. occurs, the coil 1 attracts its armature and imparts an impulse to 3, 4, at the same time breaking its own energizing circuit. When, at the end of its backward swing, 5 re-energizes the coil 1, it receives another impulse, and this process is repeated until contact 5A on arm 5 engages the adjustable contact 5B and energizes the trip coil 12a. Other forms include a known type of timerelay which breaks its own energizing circuit and makes that of the trip coil, and a bimetal strip similarly functioning. In Fig. 1 (not shown), the time-relay operates without breaking its own energizing circuit. The timerelays are stated to be located outside the box containing the protection switch.
Patent GB-467043-A (GB)
Title: Process of preparing nitriles
Filed: 1936-01-31
Abstract: Nitriles of fatty acids having ten or more carbon atoms are heated under pressure to or above their decomposition temperature, whereby hydrocarbons and nitriles of fatty acids having fewer carbon atoms than the starting materials are obtained.  The reaction temperature may be 400--800 DEG  C., but is generally not much above 500 DEG  C., and the pressure may be 150--1500, preferably 250--500 lb. per sq. inch; these conditions may correspond to reaction in the liquid phase or the vapour phase or both.  A catalyst may be present, e.g. an oxide of aluminium, thorium, osmium or iron.  Specified starting materials are stearonitrile, palmitonitrile, mixtures of higher aliphatic nitriles such as the nitriles of garbage grease acids or lard acids, and nitriles of unsaturated higher fatty acids such as oleic, linoleic, or linolenic acid.  An example is given in which stearonitrile is treated to yield a product including capronitrile, enanthonitrile, pelargonitrile, caprylonitrile, lauronitrile, undecylonitrile, caprinitrile, unsaturated nitriles, and hydrocarbons; the product may be fractionated.  The nitriles are useful in insecticidal compositions.  Two forms of apparatus for use in the process are described, viz. (1) a discontinuous apparatus comprising an autoclave and a condenser, and (2) a continuous apparatus comprising a cracking coil, a condenser, and means for returning unchanged starting material to the coil.
Patent GB-1243217-A (GB)
Title: Pallet handling dolly
IPC: B64F1/32
Filed: 1968-07-19
Abstract: 1,243,217. Vehicle couplings. DORR-OLIVER Inc. 19 July, 1968 [21 July, 1967], No. 2983/71. Divided out of 1,243,215. Heading B7T. In apparatus for handling aircraft cargo pallets (see Specifications 1,243,215 and 1,243,216, Division B8) a dolly 20 is coupled side-by-side to a tractor 24 by means of an angle member 94 which depends from a longitudinal beam 92 secured to the tractor. The member 94 co-operates with a lug 110 mounted on a pad 112 secured to the side of the dolly. To engage the dolly the tractor approaches from the rear (from the right in Fig. 4) with the beam 92 adjacent to abutments 106, 108 on the dolly. The vehicles being in the positions shown in Fig. 4, the tractor operator moves a locking member 100 from a stored position to an operative position in which the member extends through a slot 96 in the beam 92 and through a slot 104 in a reinforcing plate 102. The lower end of the member 100 is thus located in front of a portion 114 of the lug 110 and the vehicles are coupled.
Patent GB-947724-A (GB)
Title: Method of and apparatus for producing aluminium shot
Inventor: PAYTON LELAND RODMAN
IPC: B22F9/06
Filed: 1961-01-26
Abstract: <PICT:0947724/C3/1> <PICT:0947724/C3/2> In a process for preparing aluminium shot, the molten charge 12 runs through a conduit 14 into the rotating pot 16 which has holes 18 in its side.  The aluminium is ejected from holes 18 by centrifugal force and falls in the form of droplets through the air into the water 22 contained in a circular tank 20.  The temperature of the water is kept down by circulating fresh water in at pipe 24 and taking off hot water at pipe 26, Fig. 2 (not shown).  The support 28, Fig. 3, of the pot 16 is provided with a cam 38 which gives the pot a jar on each revolution thus helping to detach the shot from pot 16.  U.S.A. Specifications 2,217,235, 2,439,772 and 2,728,107 are referred to.
Patent GB-807645-A (GB)
Title: Improvements in or relating to method of welding
IPC: B23K9/173
Filed: 1955-02-03
Abstract: A flux forming part of an arc welding electrode (see Group XXII) contains a deoxidizer and a prefused slag-forming material but no gas or gas-forming materials.  A flux for use in welding semikilled steel is formed of a base mixture of 20 parts sodium silicate, 50 parts rutile and 4 parts manganese oxide which is fused and pulverized.  80 parts of the base mixture are mixed with 40 parts prefused silicon and 30 parts prefused ferromanganese to produce the flux.  Other suitable materials for incorporating in the flux are potassium, silicate, manganese titanium, ferro-silicon, ferro-titanium, or the oxides of silicon, vanadium, columbium, potassium, aluminium, zirconium, sodium and calcium.  At least 75 per cent. of the oxide in the flux is rutile.  Specification 807,646 is referred to.
Patent GB-514370-A (GB)
Title: Apparatus for securing protection against flying machines
IPC: F41H11/04
Filed: 1938-02-02
Abstract: 514,370. Aerial warfare. LE ROY, J. Feb. 2, 1938, No. 3235. Void. Convention date, Feb. 2, 1937. [Class 9 (ii)] Ropes supporting one or more explosive bodies are suspended in the air by parachutes or balloons. The ropes are preferably wholly or partially elastic, with the explosive bodies slidably mounted thereon. Individual ropes may be released from an aircraft when attacked by an enemy machine, or an aerial defence screen of such ropes may be set up by defending planes when an enemy raid is threatened.
Patent GB-458058-A (GB)
Title: Improvement in pumps
IPC: F04C19/00
Filed: 1936-02-03
Abstract: 458,058. Centrifugal pumps. TRIGGS, W. W., 57, Lincoln's Inn Fields, London.- (Nash Engineering Co.; South Norwalk, Connecticut, U.S.A.) Feb. 3, 1936, No. 3242. [Class 110 (i)] Leakage from the discharge of a liquid ring pump to the suction is prevented by the introduction of high pressure liquid to the running clearances between the rotor and the casing. The liquid forming the ring may be used for this purpose and it is led through a pipe 34 near the discharge to a rotor space 31. Thence it is distributed partly through apertures 32 to seal the clearances 28, 29 and partly through a space 33a between the shroud and the casing to seal the clearance 30. In a modification, the apertures are replaced by grooves in hub of the rotor. In a further modification, Fig. 6, the pipe 34 is dispensed with and the fluid is led in through the space 33a to grooves 39.
Patent GB-886848-A (GB)
Title: Improvements in or relating to saw blades
IPC: C22C38/24
Filed: 1960-01-29
Abstract: A saw blade is made from a steel comprising: .C.0,90 to 0,99% .Si.0,20 to 0,40% .Mn.0,25 to 0,50% .Cr.3,00 to 5,00% .W.1,50 to 2,50% .Mo.0,50 to 1,50% .V.1,50 to 3,00% remainder except for impurities Fe.  The blade may have a hardness in excess of Rockwell "C" 45.  The steel is hardened by (1) heat-treating above 1500 DEG C, cooling and (2) tempering below 1200 DEG F., preferably (1) at 1600 DEG F. to 2200 DEG F. and (2) between 950 DEG F. and 1150 DEG F.
Patent GB-162783-A (GB)
Title: Improvements in screw-drivers
IPC: B25G1/10
Filed: 1920-02-04
Abstract: 162,783. Baraclough, W. H. Feb. 4, 1920. Screwdrivers.-A screwdriver adapted for use with screws of different sizes consists of a doubleended blade or a number of single ended blades, pivoted in a slot in a handle so that either end or any blade may be turned into an operative position, the blades being retained in position by a sliding clip or collar mounted on the handle. Figs. 1 and 4 show a screwdriver with a blade c having screwdriving ends d, e of different sizes and pivoted by a pin f in the handle a which may be cast or forged but which is preferably formed from two T-shaped metal blanks b, b<2> having abutting side flanges p and riveted or welded together. A collar m sliding on the handle a normally holds the blade in line with the handle as shown in Fig. 1, but is provided with side notches k to engage the blade and hold it at rightangles to the handle if desired. The collar m may have projecting side parts m<1>, Fig. 12, to allow it to pass over the pivot f to enclose the blade when the tool is not in use. Fig. 11 shows a screwdriver with four pivoted single-ended blades 1, 2, 3, 4 any of which may be held in the operative position by a sliding collar n.
Patent GB-644105-A (GB)
Title: Improvements in respiratory apparatus
IPC: A62B9/00
Filed: 1948-02-05
Abstract: 644,105. Pressure gauges. MANDET, Y. J. B. Feb. 5, 1948, No. 3388. Convention date, Nov. 27, 1947. [Class 106 (ii)] [Also in Groups VI and XXIX] A device for giving warning when pressure of a gas in a storage cylinder falls to a certain level comprises a diaphragm on which the pressure bears in opposition to a loading spring, and an excess thrust by the spring opens a valve to admit gas to a whistle. Under normal conditions gas under pressure passes up through drillings in the body of the device and bears on a diaphragm 8, holding this up against the thrust of a spring 11 which bears down on a pin 10. When the pressure falls below a predetermined amount the spring presses the diaphragm 8 and thrust plate 9 downwards and so, through push rods 13, presses a sliding block 3 downwards against a spring 6 so that a resilient closure block 4 is removed from the valve member 5 and gas passes therethrough to a whistle 2. The pressure at which the whistle operates may be set by adjusting the spring pressure by a screw stop 12.
Patent GB-936359-A (GB)
Title: Electro-pneumatic fluid switch
IPC: F15C1/04
Filed: 1961-10-11
Abstract: 936,359. Regulating fluid flow. SPERRY RAND CORPORATION. Oct. 11, 1961 [Oct. 25, 1960], No. 36444/61. Class 135. In a fluid switch having a power jet stream input duct 2, Fig. 2, connected through a neck portion 8 to a plurality of receiving ducts 4, 6, the power stream is ionized by a grid-like element 10 within the duct 2 and its direction is controlled in the neck 8 by electrodes or plates 14, 16 to which a high D.C. potential is selectively applied. The ducts 4 and 6 are defined by a divider 18 which may be asymmetrically disposed, Fig. 4, so that the main jet stream normally flows into the duct 4. If the neck 8 is stepped as shown, a suction effect locks the stream in the selected direction. By applying suitable potentials to the electrodes 14, 16, the jet stream can be diverted into the duct 6. In one embodiment four receiving ducts and four control electrodes are provided. The electrodes may be replaced by magnetic field generators.
Patent GB-984634-A (GB)
Title: Fuel injection pumps
Inventor: MACHALICKY OLDRICH
IPC: F02M41/14
Filed: 1962-01-30
Abstract: 984,634. Fuel-injection pumps. USTAV PRO VYZKUM MOTORVYCH VOZIDEL. Jan. 30, 1962, No. 3452/62. Heading F1A. In a fuel injection pump, comprising opposed pistons 6, Fig. 1, mounted in a revolving distributer body 5 and reciprocated by a cam ring acting through rollers 9 and shoes 8, stroke varying is effected by wedge-shaped members 7 slidable transversely relative to the pistons and engageable with angled surfaces on shoes 8. Movement of members 7 is controlled by a governor. In another embodiment, Fig. 4, members 7 are replaced by discs 14 having tapered slots 11 co-operating with angled projections 12 on the shoes, rotation of the discs relative to the pistons effecting the stroke variation.